From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932231Ab2HFPO1 (ORCPT ); Mon, 6 Aug 2012 11:14:27 -0400 Received: from mailout-de.gmx.net ([213.165.64.22]:51225 "HELO mailout-de.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S932185Ab2HFPOZ (ORCPT ); Mon, 6 Aug 2012 11:14:25 -0400 X-Authenticated: #14349625 X-Provags-ID: V01U2FsdGVkX1+bk8c3b8ubv2/W3bcRG+dv1At1kV5lY862TZNDyS ct7Fj8DpAu09CB Message-ID: <1344266062.6853.26.camel@marge.simpson.net> Subject: Re: unfair scheduling with tbb application observed, could it be a kernel issue? From: Mike Galbraith To: Pedro Larroy Cc: linux-kernel@vger.kernel.org Date: Mon, 06 Aug 2012 17:14:22 +0200 In-Reply-To: <1344264419.6853.19.camel@marge.simpson.net> References: <1344263139.6853.10.camel@marge.simpson.net> <1344263912.6853.14.camel@marge.simpson.net> <1344264419.6853.19.camel@marge.simpson.net> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.2.3 Content-Transfer-Encoding: 7bit Mime-Version: 1.0 X-Y-GMX-Trusted: 0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Ok, with the sched_debug info you sent offline, booting with noautogroup appended to the kernel command line should fix it up for you. You've got autogroup enabled, which creates automagic per session task groups. -Mike